Hosung Lee Email and Phone Number

- leading the development groups that are making English and math textbooks for the AI digital textbook platform that the Korean Ministry of Education is trying to provide to Korean elementary, secondary, and high school students in 2025. The development group includes three developments (Front-end Development, Back-end Development, and Cloud Infrastructure Establishment and Maintenance) and a number of outsourced developers who develop AI and educational materials.

- leading to develop web-based content solutions and editor and making the education platform with the video conference.- developing PC / Mobile applications by using Electron, react, typescript, redux, mobx, GO, Kotlin/Java, Swift, and gRPC

- Implemented web-based Education Content solutions by using React.js, TypeScript, and Mobx

- Implemented the Video Platform site (http://www.xrtube.net) by using PHP. The related GitHub URL is https://github.com/xrtube/xrtube-client- Implemented the Blockchain site (http://api.trustcoinmining.com/) by using PHP.- Implemented the Education Content solution by using React.js with KDMT which I worked for 5 years.

Implemented websites with Nancy framework (C#/.NET/Restful), Javascript framework (Keno UI) and SQL Server. The website push messages to Android phones by using Google Firebase API and provides location monitoring service to display moving locations by using Google map API.Customized a website with Lumen micro-framework (PHP/Restful), JavaScript/JQuery, Kendo UI and MySQL. Updated functions of an Android app used by a transportation company with JAVA/Dagger 2/OkHttp 3/ORMLite/Google Firebase API.

Took part in making Android apps as a volunteer android developer. The one app is for online date service and the other is for making game maps. Used skills like RxAndroid/RxJava.

Created/Updated JAVA PC application communicated with Android Phone via USB cable Built New Functionalities of Android App (name: One-Touch Inspection)Assist Web Program's development

In KDMT, I developed and updated several e-Learning/e-Book mobile apps, web applications and websites with Content Management Systems (CMS) & edit tools using Adobe Flash/AIR, ActionScript, and ASP/ASP.NET(C#) or JSP/JAVA/SPRING1) E-Learning Solutions (‘Activity’) includes- Contents creation, editing, and template features- Communicate with customer Learning Management System (LMS)- Provide video/audio (streaming) play, voice recognition (3rd party), animation effect, etc.- View online contents and downloaded contents2) E-Book Solution(‘DMOOK’) includes- Convert PDF, MS-Word, MS-Excel, MS-PowerPoint and Image to e-Book- Embed multimedia files (video/audio/image/flash file, etc.)- Provide e-Book accessories (Note/Text & Image Clipping/Search, etc.)- Used for universities, libraries, local governments, churches, publication companies, etc.< Sample sites >▪ Web pages (http://www.dmook.com, http://arch.seoularts.ac.kr/, http://www.ybmfarm.com)▪ Android App (https://play.google.com/store/apps/details?id=air.com.visang.englisheye&hl=ko)▪ iOS (https://itunes.apple.com/us/app/activitymanager/id979801732?mt=8)▪ Web Application (http://www.ybmfarm.com/common/activity.do?books_id=J-GK-ell-19&coursetype=free&free_type=word)

As a Senior Developer, I lead the developments of server-side modules and websites for performing online businesses.I did:1) Multi-threading & Network Programming using VC++/IOCP/Socket - Online betting game - Credit Card VAN(Value Added Network)’s mileage/point management service - Advertisement seller’s payment solution2) Web programming using - ASP/ASP.NET(C#.NET)/MS-SQL in Windows Server - PHP/MySQL in Linux Server

1) As Local technical manager at WiderThan branch in the Philippines, I was in charge of- Troubleshooting system with local engineers- Coordinating between local engineers and headquarters (Korea) support engineers- Upgrading CMS with local developers and content payment service with headquarters developer (Java/JSP/XML)2) As an Aboard Project Manager, I managed- Ring Back Tone system installation and integration with local system in the mobile carrier companies of the Philippines, Vietnam, and Thailand- Local Ring Back Tone CMS development3) As a System Support Engineer, I performed- 2,3 Level troubleshooting support (1 Level local engineer only)- Ring Back Tone system installation in Indonesia and USA- ‘Metee’(Messenger program) service installation and testing in Israel

I developed/created several portal web services. The area of development included:- Online deposit and payment component (VB/VC++ DLL, MS-SQL stored procedure)- Member management service (ASP, LDAP)- Gathering content usage history & weblog and built statistics system (ASP, MS-SQL, VC++)

I developed workflow management systems using CGI, Unix C, Oracle, and Pro*C:- LG GroupWare 2.0 workflow for LG-affiliated companies- Software product for public enterprises or public sectors